Ward-cylinder for locks.



S.H. FRAIIVI. WARD CYLINDER FOR LOCKS. APPLICATION msn Jun/16.1911,

Patented Jan. 15, 1918.

en agrarias SAMUEL R. FRAIM, OF LANCASTER, PENNSYLVANIA., ASSIGNOR TO THE E. T. FRAM LOCK COMPANY, A. CORFORATION 0F PENNSYLVANIA.

WARD-CYLINDER FOR LOCKS.

Application 'liled July 16, 1917.

To all 'whom it may concern:

Be it known that l, SAMUEL R. FRAIM, a citizen of the United States, residing at Lancaster, in the county of Lancaster' and State of Pennsylvania, have invented cer tain new and useful Improvements in Ward-Cylinders for Locks, of which the following is a specification.

This invention relates to ward cylinders for locks.

Heretofore cylinders of this kind when formed of sheet metal, have been made with a solid wall and therefore the wards con tained in them have of necessity been held in place by castings or washers which are difficult of introduction and which are more or less insecure in their 'positions when seated.

The object which I have in view is to provide a. ward cylinder which shall be cheap and easy of manufacture and which shall be of a forni to permit of the rapid placing of wards permanently therein with the expenditure of little labor.

Viith this object in view theJ invention consists of a ward cylinder having the novel generic and specific features substantially as hereinafter described and claimed.

The invention is illustrated in the accom panying drawing in which;

Figure lis a perspective view of a ward cylcinder applied to the cap of a lock case; an

Fig. 2 is a vertical sectional .view of the cylinder showing two wards arranged therein.

The cylinder is made from a sheet of metal by drawing the two ends of the sheet down into a forming die, producing the cylindrical body and the circular Harige eX- tending substantially at right angles to the body.

The cylinder when completed is composed of two parts l and 2 of the saine size each forming half of the cylinder and each half has formed with it a semi circular base 8.

The semi-cylindrical parts of the body of the cylinder and base are separated from each other throughout except that they are connected by the outer end portion l the outer face of which is preferably depressed presenting the outer rounded face 6 as shown, and has formed in it a key opening 7.

Each part of the wall of the body of the @epilee et this patent may he obtained; for

Specification of Letters Patent.

Patented dana lli., this.

Serial No. 180,714.

cylinder is provided with one or more openings or sockets S of any desired form, being;a preferably angular', oppositely arranged, and adapted to receive the projections 9 ex tending from the periphcries of the wards 10. The projections are of a forni in cross section corresponding to the shape of the openings in the sides of the cylinder. The openings and projections are each preferably angular or other than circular in cross section to prevent turning of the wards when introduced and seated.

In placing the wards in a cylinder constructed as described, the parts of the body of the cylinder are drawn apart, `the wards introduced and the projections therefrom properly placed in the openings or soclets in the sides of the cylinder. The parte of the cylinders are then brought Ytoward each other until their edges meet and the cylin4 der is then attached in place for use by screws or rivetsv passed through the flange, for instance to the cap of a lock case as herein shown.

The cylinder described not only cheaper than those heretofore inade but its construetion Apermits of the more rapid introduction and holding in place of the wards without the use of any additional parts. Furtheri'nore `when the wards are arranged in the cylinder as described. and the base of the cylinder ie secured in place displacen'ient of the wards is impossible.

I claim:

l.. A ward cylinder fornied of one piece of material bent and drawn into two sep-- arate scmi-cylindrical parts, and an outer end portion connecting the said parts.

2. A ward cylinder formed of one piece of material bent and drawn into two separate semi-cylindrical parts and an outer end por tion connecting said parts, each of said parts beingl provided. with opposed openings, and wards having projections adapted to enter said openings, said seinicylindrical parts being adapted to be drawn apart to permit the insertion of the wards and to be brought together to hold the wards in position.

ln testimony whereof afiix my signature in presence of two witnesses.

SAMUEL R. FRAlll/l lili tnesses JNO. Harmon, MILLER R. BUcHHAa'r.

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